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All results from a given calculation for CH3CH2NH2 (Ethylamine)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no C1 gauche 1A

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-134.993372
Energy at 298.15K-135.001457
Nuclear repulsion energy82.277443
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3385 3350 2.38      
2 A' 3040 3009 38.51      
3 A' 2965 2934 39.68      
4 A' 2960 2930 18.80      
5 A' 1618 1601 15.01      
6 A' 1454 1439 1.32      
7 A' 1434 1419 0.02      
8 A' 1353 1339 6.04      
9 A' 1331 1317 14.14      
10 A' 1133 1121 8.19      
11 A' 1042 1031 21.93      
12 A' 886 877 90.34      
13 A' 849 841 65.46      
14 A' 387 383 4.97      
15 A" 3464 3428 0.44      
16 A" 3044 3012 45.51      
17 A" 3000 2969 10.06      
18 A" 1446 1431 6.29      
19 A" 1356 1342 0.01      
20 A" 1232 1220 0.04      
21 A" 980 970 1.15      
22 A" 754 746 1.68      
23 A" 292 289 33.90      
24 A" 250 247 9.37      

Unscaled Zero Point Vibrational Energy (zpe) 19826.7 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 19622.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBE/6-31G(2df,p)
ABC
1.05685 0.28894 0.25814

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.318 -0.075 0.000
C2 0.000 0.575 0.000
C3 1.216 -0.362 0.000
H4 2.165 0.201 0.000
H5 1.212 -1.014 0.891
H6 1.212 -1.014 -0.891
H7 0.044 1.240 -0.882
H8 0.044 1.240 0.882
H9 -1.374 -0.700 0.812
H10 -1.374 -0.700 -0.812

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 H7 H8 H9 H10
N11.47002.55063.49462.84202.84202.08912.08911.02581.0258
C21.47001.53542.19752.18812.18811.10521.10522.04262.0426
C32.55061.53541.10371.10391.10392.17182.17182.73522.7352
H43.49462.19751.10371.78291.78292.52102.52103.74133.7413
H52.84202.18811.10391.78291.78163.09602.53842.60613.1119
H62.84202.18811.10391.78291.78162.53843.09603.11192.6061
H72.08911.10522.17182.52103.09602.53841.76362.93992.4041
H82.08911.10522.17182.52102.53843.09601.76362.40412.9399
H91.02582.04262.73523.74132.60613.11192.93992.40411.6235
H101.02582.04262.73523.74133.11192.60612.40412.93991.6235

picture of Ethylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 116.120 N1 C2 H7 107.591
N1 C2 H8 107.591 C2 N1 H9 108.547
C2 N1 H10 108.547 C2 C3 H4 111.702
C2 C3 H5 110.946 C2 C3 H6 110.946
C3 C2 H7 109.592 C3 C2 H8 109.592
H4 C3 H5 107.733 H4 C3 H6 107.733
H5 C3 H6 107.604 H7 C2 H8 105.849
H9 N1 H10 104.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.494      
2 C -0.144      
3 C -0.403      
4 H 0.122      
5 H 0.120      
6 H 0.120      
7 H 0.116      
8 H 0.116      
9 H 0.224      
10 H 0.224      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.835 -0.939 0.000 1.256
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.519 2.367 0.000
y 2.367 -20.035 0.000
z 0.000 0.000 -19.027
Traceless
 xyz
x -3.988 2.367 0.000
y 2.367 1.238 0.000
z 0.000 0.000 2.750
Polar
3z2-r25.500
x2-y2-3.484
xy2.367
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.172 0.202 0.000
y 0.202 4.618 0.000
z 0.000 0.000 4.562


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000

Conformer 2 (C1 gauche)

Jump to S1C1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-134.992427
Energy at 298.15K 
Nuclear repulsion energy 
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at PBEPBE/6-31G(2df,p)
ABC
1.05685 0.28894 0.25814

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability